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Genome-wide association study of vitamin D status in diverse ancestry individuals with adjustment for ambient ultraviolet B (UVB) radiation
Background & aim
25-hydroxyvitamin D (25OHD) level, the vitamin D status biomarker, is influ...
Shraim, R., van Geffen, J., McManus, R. and Zgaga, L. | Journal: Clinical Nutrition | Volume: 64 | Year: 2026 | First page: 106746 | doi: 10.1016/j.clnu.2026.106746
Publication
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UVdose: an R package for estimating ambient vitamin D?effective UVB and erythemal UV doses
Ultraviolet (UV) radiation plays a critical role in both beneficial and harmful health outcomes, ...
Shraim, R., van Geffen, J. and Zgaga, L. | Journal: Photochem Photobiol. Sci. | Volume: 26 | Year: 2026 | First page: 959 | doi: 10.1007/s43630-026-00959-0
Publication
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Ambient ultraviolet-B radiation, supplements and other factors interact to impact vitamin D status differently depending on ethnicity: a cross-sectional study
Background & aims
Many determinants of vitamin D status have been well-described, yet supple...
Brennan, M.M., van Geffen, J., van Weele, M., Zgaga, L. and Shraim | Journal: Clinical Nutrition | Volume: 43 | Year: 2024 | First page: 1308 | Last page: 1317 | doi: 10.1016/j.clnu.2024.04.006
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Prevalence and determinants of profound vitamin D deficiency (25-hydroxyvitamin D <10 nmol/L) in the UK Biobank and potential implications for disease association studies
Background
25-hydroxyvitamin D (25OHD) is the principal biomarker of vitamin D status. Values be...
Shraim, R., Brennan, M.M., van Geffen, J. and Zgaga, L. | Journal: Journal of Steroid Biochemistry and Molecular Biology | Volume: 250 | Year: 2025 | First page: 106737 | doi: 10.1016/j.jsbmb.2025.106737
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The association between ambient UVB dose and ANCA-associated vasculitis relapse and onset
Background
The aetiology of ANCA-associated vasculitis (AAV) and triggers of relapse are poorly ...
Scott, J., Havyarimana, E., Navarro-Gallinad, A., White, A., Wyse, J., van Geffen, J., van Weele, M., Buettner, A., Wanigasekera, T., Walsh, A., Aslett, L., Kelleher, J.D., Power, J., Ng, J., O'Sullivan, D., Hederman, L., Basu, N., Little, M.A. and Zgaga, L | Journal: Arthritis Research & Therapy | Year: 2022 | doi: https://doi.org/10.1186/s13075-022-02834-6
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